Research Article

Mixed-Matrix Membrane for Gas Separation: Polydimethylsiloxane Filled with Zeolite

  1. M. Hussain*,
  2. A. König

Article first published online: 6 FEB 2012

DOI: 10.1002/ceat.201100419

Issue

Chemical Engineering & Technology

Chemical Engineering & Technology

Special Issue: Efficient Carbon Capture for Coal Power Plants

Volume 35, Issue 3, pages 561–569, March, 2012

Additional Information

How to Cite

Hussain, M. and König, A. (2012), Mixed-Matrix Membrane for Gas Separation: Polydimethylsiloxane Filled with Zeolite. Chem. Eng. Technol., 35: 561–569. doi: 10.1002/ceat.201100419

Author Information

  1. University of Erlangen-Nürnberg, Chair of Separation Science and Technology, Erlangen, Germany.

*University of Erlangen-Nürnberg, Chair of Separation Science and Technology, Erlangen, Germany.

Publication History

  1. Issue published online: 27 FEB 2012
  2. Article first published online: 6 FEB 2012
  3. Manuscript Accepted: 2 JAN 2012
  4. Manuscript Revised: 20 DEC 2011
  5. Manuscript Received: 10 AUG 2011

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Keywords:

  • Adsorption;
  • Gas separation;
  • Mixed-matrix membranes;
  • Permeability;
  • Zeolites

Abstract

Mixed-matrix membranes (MMMs) comprised of polydimethylsiloxane (PDMS) as continuous and zeolite (ZSM-5) as dispersed phase have been prepared to investigate CO2 separation from gas mixtures, focusing on the high solubility of CO2 in ZSM-5/PDMS MMMs for separating CO2-N2 mixtures. ZSM-5 incorporation in PDMS significantly increases the permeability of single gases and a similar effect is observed for gas mixtures. Membrane performance is evaluated using the Maxwell model; an interphase gap between the filler and the polymeric phase is identified. A modified Maxwell model is applied to account for this additional transport through the membrane.

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